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介绍了新型单片ＦＳＫ调制解调器ＴＳＣ７３Ｍ２２３的特点和主要技术指标，并讨论了与单片机的接口以及通过公用电话网进行远距离数据传输的方法。
The characteristics and main technical specifications of the new monolithic FSK modem TSC73M223 are introduced. The interface with the singlechip and the method of long distance data transmission via public telephone network are also discussed.